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  1. Well... The theory is that stopping the pumps...

    Well... The theory is that stopping the pumps would stop refrigerant charge migration to the condenser, which can create an inverted start situation that can lead to a fault condition.
    Given that...
  2. The Heat Recovery Chiller is expected to operate...

    The Heat Recovery Chiller is expected to operate all year round. During Summer there would be hot water demand for VAV reheat, DHW and Summing Pool. During Winter there will be cooling demand from...
  3. The setup consists of a heat recovery chiller...

    The setup consists of a heat recovery chiller (HRC) in series with two chillers (in parallel with each other). This type piping of HRC is refereed to as sidestream. The HRC has its on pumps and VSD,...
  4. Yes. I do have a general description of how the...

    Yes. I do have a general description of how the system is supposed to operate on a macro level. For example, the heat recovery chiller shall be no off if there is not enough heating and cooling...
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    Thanks. I do have the programming guide, it's...

    Thanks. I do have the programming guide, it's helpful only to certain extent. To get familiar with the blocks available, I did follow this guide and used the DDC simulator to make sure I have the...
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    112,482

    Hello. I am new to VisioLogic environment and am...

    Hello. I am new to VisioLogic environment and am tasked with central plant DDC programming (ACM-VLX). I have my HVAC basics right and have done research for what factors to consider for proper...
  7. Preferably a Variable Primary flow sequence.

    Preferably a Variable Primary flow sequence.
  8. Chiller and Heat Recover Chiller Sequencing

    Hi,

    Did anyone encounter a proper technical guide where the staging of multiple chillers (parallel) in series with heat recovery chillers is discussed from a controls perspective?
  9. Dedicated Heat Recovery Chiller CHW & CW pump relay

    Can anyone tell me when the CHW & CW pump relays are activated in the MultiStack DHRC? Are they based on pump demand? I'm wondering why two separate relays and how I would be able to use it in my...
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